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is the result of wind erosion

Tiffiney Diamond | Profile
July 28, 2010

The road continues upward, over long undulating brown mountains, until it reaches Tingri, a small town with incredible views of Everest. The height of the Himalayas shields Tibet from rain clouds, creating an arid landscape. Everything at Tingri is exhilarating, intoxicating, strange, and wonderful. Along the length of Heart lock charm pendant southern horizon is a chain of towering Great Himalayan white peaks. There are a number of ruined forts near Tingri, built by the Tibetans when Tibet was a great Central Asian military power. On the plateau, intense solar radiation during the day and low temperatures at night have resulted in the cracking of a vast amount of rocks. The large amount of eroded debris and gravel form stone pillars, debris slopes, and rock streams.

From Tingri the road leads to Lagpa La (5,250 meters, or about 17,120 feet), the highest point on the Butterfly pendant. The pass is a broad saddle covered with shattered slabs and trash. The view to the north reveals the flat skyline of the Tibetan Plateau; to the south the traveler to Lhasa sees the last view of Everest. After crossing the pass, we entered the valley of the Tsangpo River at Lhatse. Here, the Tsangpo Valley exhibits features of mature fluvial geomorphology. The wind is also an active geomorphic agent in this arid and semi-arid part of Tibet. The windbome sand accumulation on the slopes of the Tsangpo Valley, as well as on the desertified ground of the plateau, is the result of wind erosion and the deposition of surface materials.

The Tsangpo River, or Brahmaputra, originates in a glacier near Mount Kailash in the northern Himalayas. It flows east for about 1 700 kilometers (1 ,1 00 miles) at an average height of 4,000 meters (13,200 feet) and is the highest river in the world. The central section of the valley occupies the Yarlung-Tsangpo Fault ZoneTwo Hearts pendant Its main tributary, the Kyichu River, also occupies a secondary fault zone. Alluvial fans are widely dispersed at the foot of the mountains in the valley. During the dry season, the exposed basin stretches for miles. In some places above the valley floor, there are river terraces. Alluvial fans formed in these valleys are the main areas suitable for farming on the plateau.

Under Chinese rule, irrigation development, mechanization, and greenhouse forming have made Tiffany 1837 tag pendant valley floors the granary of the plateau. Long strips of cultivated land are concentrated here in the valley of Tsangpo and its tributaries. Most of the formland in the valley is irrigated. Major crops include highland barley, wheat, peas, and rapeseed. Crops are harvested annually, with a comparatively high yield per unit area.



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